ANALOG DEVICES
Voltage Reference Series - Fixed, 3V reference, 3ppm/°C, NSOIC-8
Voltage Reference Series - Fixed, 2.048V reference, 3ppm/°C, NSOIC-8
Voltage Reference Series - Fixed, 2.5V reference, 3ppm/°C, NSOIC-8
Voltage Reference Series - Programmable, 2.5V, 3V reference, 3ppm/°C, NSOIC-8